Transmission control



W. PUHC-ELL. TRANSMISSION CONTROL.

I APPLLcATloN. FILED JUNE so, 1920. y Y 1,413,133. Patented Apr. 18, 1922.

4 SHEETS-SHEET 2.

I TEEN INVENTOR. wif-50N /D/PCf-L 2 ATTORNEY.

w. PURCELL.

TRANSMISSION CONTROL.

APPLICATION man JUNE 30. 1920.

1,41 3, 1 33. Y Itked Apr.A 18, 1922..

4 SHlzEl'S-SHEET 3.

- ATTORNEY.

,W. PURCELL.

i TRANSMISSION CONTROL` APPLICATION FILED JUNE so, i920' ,4 133, Patented ADI'. 1 8, 1922.

K 4 sHEETs-sHEET 4.

INVENTOR. 36.' y l l Mensa/y /Dz//Pcf,

A TTORNE Y.

' unire-rers freier riefeywarson rumeur., er normar-in, runas.

' rnansiarssron c on'raon animee.

To all whom t may concern:

' Be it known that I, WATSON PURCELL, a lcitizen-of the United States, residing at Coleman, in the county of Coleman and State v0f Texas, have invented certain new and useful Improvements in Transmission-Controls, of

provide a novel construction of transmis-Q sion control which is compact .and requires7 a minimum space and which is highly etlicient in operation.

A still further object ofthe invention is to provide means whereby the driver of a self propelled vehicle' is prevented from bringing the clutch thereof into engagement before `completing the shifting of the gears whereby the speed of the vehicle is governed, and conversely to prevent shifting of the gears before the clutch is disengaged. lt is well recognized that these two mistakes, are

the ones which are most frequently made in gear shifting in self propelled vehicles, and are the mistakes which cause stripping of the gears and undue wear upon the clutch.

A further object of the invention is to provide a clutch pedal lever having oscillatory .foot pedals which control the movement of the change speed gears of the transmission. Other objects andadvantages will become y apparent throughout the course of the following description. A A ln the accompanying drawings, wherein for the' purpose of illustration is shown, a

v pieferredfembodiment of my invention and wherein like reference characters designate like parts throughout:

Figure l is a longitudinal sectional plan of my transmission control.

Figure 2 is an enlarged detail view show-v -Specication of Letters Patent. Patentamt Apu, 11S, '1922, Application filed June. 30, 1920. Serial No. 393,125. i

ing lthe operating arms" shifted with the clutchpedal. Figure `3 is a section 3 3 of Figure 2. e.

Figure 4c is a section taken .through one of theoperating arins.

vFigure 5 is a section .taken on the line 5--5 of' Figure-2.

Figure 6 is a.. section taken on the line 6--6 of Figure Figure Figure 8 is a rear` elevation thereof.

Figure 9 is a section taken on the line 9--9 of Figure 7;-

Figure l0-is an enlarged detail sectional view, `parts being shown lin elevation, illustrating the mounting of-the operating mechanisin for the gears ofthe change speed 4gearing upon the clutch pedal.

" In. the employment of my invention, the

4l clutch l0 is provided which has portions connected tothe driving shaft and portions connected to 4the driven shaft, these portions being adapted, te-,be brought into engagement upon-rotation of a-member l1. The construction of the clutch member may be as desired either of the friction disc type or of the cone or direct connection system.'

The clutch together with the member 11 are mounted in a suitable casing or housing l2, the member ll being secured to an operating' shaft' 13 which is rotatably mounted in the side walls of this housing. change rspeed gear casing lll is provided arranged adjacent the clutch housing l2 and vprefer- Ataken on the liner rv is a side elevation of the clutch pedal employed in my invention.,

ably having one end coincident with and Y forming one end of the clutch housing. The gear ycasing le is-positioned slightly eccentricallyy withrelation te the clutch housing 12in order that one side ofthe gear casing may coincide with one side of the clutch housing whereas the other side l5- of the gear casing will be spaced from the corresponding side wall 12 of the clutch housing forining a space 16. l.

' @ne end of the shaft 13 projects into the lspace 16 and has secured thereto?A a member l? embodying, aI pair of arms 18 extending from one side thereof, and a sleeve like portion 19. Rotatably mounted, in the sidewall` man 15 of the gear casing 14 and in a lug 20 extending rearwardly from the clutch housing,

taneously oscillated.

Rotatably mounted within the sleeve 21 is a second `sleeve 24, having secured to its inner end, as at '25, a cam member 26. Rotatably mounted within the sleeve 24 is a stub shaft 27, having secured thereto, at the inner endthereof as at 27', a cam -menn ber. 28. These cam members 26 and 28 ex-l tend intermediate the arms-18 of the mein-y ber 17, one of the members 26 or 28 lying next 'adjacent each of the arms. Each cam member is provided at its outer or free end with an'angularly disposed arcuate groove 29' for a pu'rpose hereinafter to appear.

' j The outer end 30 of the lstub shaft 27 has secured thereto an operating arm 31 and ,longitudinally.thereof is a shifting shaft 44 the sleeve 24 has secured thereto an operating arm 32, the operating arm 32 of the sleeve 24 extending through a slot 2l. formed in the sleeve 21. the drawings it will be seen that the operating arms 31 and 32 extend upon'opposite sides of the pedal lever 23'.

The upper end of the clutch pedal lever 23 is provided with an angular extension 33 terminating in oppositely extending trunlnionsl34 arranged at right angles to the extension 33 and disposed in a horizontalv plane.' These trunnions 34 have rotatably mounted thereon sleeves 35 provided upon their rear faces with pedals 36 by means of which the sleeves mayl be rotated. These pedals as will hereinafter appear have portions corresponding to corresponding stop changes in the transmission. and are lettered accordingly' as indicated at 36. y

Each sleeve 35 has secured thereto an arm '37 extending adjacent the angularv extension 33 of the clutchpedal lever and each g of these arms is provided4 with a 'down- Wardly extending portion 38 curved upon an arc having as itsv center the center of the trunnions 34. Secured to the opposite sides of the clutch pedal lever 23 .are ixed pairs of guides 39 having apertures throughwhich the arcuate extensions 38 pass. Extending through the extensions 38 are trans- 4verse pins 4() which are spaced apart a distance equal to the distance 'between the guides 39 and normally positioned in aline- `ment therewith. Set springs 41 extend inprovided with recesses 39" alined with the- By inspection of Lerares pins and permitting passage thereof three/gh the guides. The lower endsof the extensions 38 are pivotally connected as at 42 to linksV 43 which are in turn pivotally con nected to the operating arms 31 and 32 of the stub shaft 27 and sleeve 24 respectively.

1t will be seen that if pressure is placed upon the upper end of either of the pedals 36 the corresponding` arm thereto will be forced downwardly placing the spring 41 under compression between the uppermost transverse pin 40 and the lowermost guide 39 and depressing the operating arm 31 or '32, as the case may be, to which it is attached. `When the pedal is released the spring 41 will return this arm to normal position. `lf the pedal 3.6 has the pressure f applied thereto applied tothe lower portion provided with a shifting fork 45 which gov- -erns'the shifting of the gear controlling the low and reverse' transmission gearing. A second longitudinal shiftable shaft 46'is mounted longitudinally in the casing 14 and is provided with shifting forks 47 and 48 governing the shifting of the intermediate and high speed gears respectively.

Secured to each of the shafts 44 and 46 are selector plates 49 each provided with a central groove 50 hereinafter Areferred to as a neutral groove, and grooves 51 arranged to each side of the neutral`groove which control the shifting ofthe shaft, this groove aov cause the shaft to shift the desired -dis:.

tance to bring the gear selected into engagement with drive the driven shaft. Each of these plates is likewise provided with an overhanging shoulder 52 which overlays the upper ends of the grooves or slots 50 and 51.

Each of the arms 18 ofthe member 17 is provided upon its rear end with an arcuate latcliing foot 54 which will when properly alined with the aperture 53 of the overl hanging portion 52 pass therethrough.. Each of the arms is likewise provided with a,longitudinally extending groove or slot 55 in which is slidably mounted a member 5.6 provided upon its rear end with an angular portion or selector linger 57 adapted to engage in the grooves or slots 50 and 51 and upon its forward end with an angular extension58 engaging in the angular arcuate slot 29 of the cam member 28, the arrangement of the arms 28 and`26 with respect to their respective arms 18 .being exactly similar. The angular Vportions 57 and 58 of the lngitudinal shiftable'member 56 may ma being appropriately curved in order toA be, if so desired, provided with rollers to eliminate excessive frictionl Secured to the wall 15 of the casing by means of bolts 60 or the like is one arm 61 of an inverted U shaped plate 62 which is so positioned as'to be alined with the selector plates 49 when they are in neutral position.

'The interior of the arms which vare spaced upon opposite sides of the iarms 18 of the members 17v from-the selector plates 49. are

provided with a neutral groove 63 and other grooves64 arranged upon opposite sides of the neutral groove. ately curved with the pivot point of the arms -18 as a center and the grooves are spaced apart a distance equal 'to the spacing of the upper ends of the grooves' 50 and lofthe selector plates 49. The selector fingers 57 of the longitudinally shiftable members 56 -extend entirely therethrough and have their ends engaging the arms 61 ofthe plates 62 for selective engagementv in the `grooves 63-64 thereof. rlhe extension of the pins 57 enters the corresponding grooves upon the arms 61 at the same time as it enters the grooves 5() and 5 1 of the plate 49. plate is fixedl yit will be seen that when theA longitudinally shiftable member is shifted and the extension-19 engaged in one of the slotsthereof, shifting of the arm 18 will not cause any change .in the relative position of the selector finger57, thereby assuring that the selector plates 49 shift'longitudinally when either. of the groovesl thereof` is engaged.

The operation of my device is as follows:

y Assuming all of thegears to be disengagedand the clutch tobel likewise disengaged, the arcuate extensionl 54 of the arms 18 will be Aalined with the aperture 53 of the overhanging portions 52 of the plates 49 and the arm 18'will have been rotated andthe angufmember 56 from the grooves.

tion of the desiredv pedal the corresponding AS lar extension extending through the aperture freeing the angular extension or selector linger 57 of the longitudinal sliiftable By oscillacam member 28 'may now be oscillated. suming oscillation t'o be in the direction indicated by the arrow lin Figure 3, the longitudinal sliiftable member 56 moves rearwardly in the direction of the-arrow and alines with the slots 51 and 64 furthermost to the rear of the plates 49 and 62 respectively. If the clutch is now released to move in the direction of the arrow on Figure 7, the angular extension 54, of the members 18 is withdrawn from the aperture 53 and the angular extension 57 of the longitudinal shiftable member 56 may enter the groove with which it is'alined causing the shaft attached thereto to shift in the direction of the arrow on Figure 3. that an attempt to bring the clutch into e5 engagement, when the longitudinal shiftable These grooves are arcu-A As thisl It will bc obvious.

member 56 has not been moved sufficiently to properly aline the extension 57 with the slot which it is desired that it shall enter,

vwill be frustrated by the contact of, thel of the parts hereinbefore described. AsV n many changes are obviously possible I do not limit myself to the specific structure hereinbeforeset forth, but may make any such changes, without 'departing from the spirit of the invention or the vscope of the subjoined claims. Y y

Having now described-my invention, what I claim is:l

1. In a control of thejtype described, a clutch, change speed` gearing, an operating mechanism for the clutch including a shaft, a'pair of arms carried bysaid shaft one of .which forms a clutch shaft operating lever,

selector mechanism forl said change speed gearing including a. selector finger shiftable vupon the other of said arms, and means mounted upon the first named arm and' operatively connected with said finger to shift the same. i

2. In a control of the type described, a

clutch, embodying sectionsshiftable to en-- gaged and disenga ed'positions,l a shiftable pedal lever contro therefor mounted for oscillation, change speed gearing, selector mechanism for said gearing and operating `means for said change speed gearing both carried by said pedal lever control, said operating means being operable when said clutch sections are disengaged and inoperable when said clutch sections are engaged.

.3. In a control of thety e described, a clutch embodying sections s iftable to engaged and disengaged positions, a shiftable pedal lever control therefor, change speed vgearing and means carried-by said pedal lever control for shifting the gears of said .change speed gearing, embodying, pedals pivotally connected with said pedal lever control, selector mechanism associated with said change speed gearing actuated by said pedals and means connected with said pedal lever control for preventing the actuation of said selector mechanismwhen the sections of said clutch are in engaged position.-

4. In a control of the ty )e described, a clutch,.embodying sections s liftable to engagedv and disengaged positions, a shiftable iso pedaljlevercoiitrol therefor, change speed gearing and means carried by said pedal lever' control for shifting the gears of said change speed gearing, embodying, pedals pivotally connected Wit-h said pedal lever I control, selector mechanism associated with said change speed gearing actuated by said pedals and means connected with said pedal lever control for preventing thev actuation of said selector mechanism when the sections of said clutch are-in engaged position, said last named means being linoperable when the clutch sections are disengaged;

5. In a control of the type described, a

clutch, a lever control therefor, change speed gearing, selector mechanism for said change speed gearing and .means mounted on said lever for operating said selector mechanism,

said-means being inoperative 'ivl'ien he -secvtiorisfof such clutch are engaged.

.Gfln a control of the type described, a clutch embodying a section shiftable to engaged and disengaged positions,a shiftable pedal lever. control therefor, change speed .gearing and means carried. by said pedal lever control for shifting said gears when I said' clutch is in disengaged'position and Y' preventing the shifting of the gears of said change speed gearingwhen the clutch sections are in engaged position embodying selector plates, arms connected With said pedal lever control to be oscillated thereby, portions-carriedby said arms adapted to engage portions. of said selector plates'When thev lever is in the position in' which the section'of said clutch is in disengaged positionfand a selector finger carried byv saidv armband 'shiftable tliereon When the portions of saidarm are in engagement .with tlie'portions of said selector plates and held against shifting when .the portions of said arm are out of engagement with the portions of said selector plates and the section of said clutch in engaged position and while the section' thereof is moving from engaged' into disengaged positions.

7. In a control of the type described, a

clutch .embodying a section shiftable toengaged and disengaged positions, a shiftable pedal lever control therefor, change speed gearing and means carried by said pedal lever control for shifting said gears When said clutch is in disengaged position and `preventing the shift-ing of the gears of said change speed gearing when the clutch sections 4are in v engaged position embodying shiftable pedals mounted on said pedal levercontrol..selector plates connected with the shiftable gears of said change speed gearing,v

arms connected with Asaid pedal lever control to be oscillated thereby, portions carried by said-arms adapted to engage portions of said selector plates when the lever is i-n the posi-` tion in which the section of said. clutch is. in disengaged position,.a selector finger cargarages ried by said arm and shiftable thereon when the portions o'f said arm are inrengagement with the portions of said selector plates and vlheld, against shifting when the portions of said arm are out of engagement with the portions of said selector plates and the sec.-

t-ion of said clutch is in engaged position and y means connecting said pedals and said finger for shifting said finger..

8. In a control of the type described, a clutch embodying sections sliiftable to engaged' and disengaged positions, a shiftable pedal lever control therefor, change speed gearing and means carried by said pedal lever control for shifting the gears of said change speed gearing embodying a pair. of pedals pivotally mounted upon said lever for oscillation With relation thereto, a pair pf shafts connected with `the. shiftable gears of said change 'speed gearing to shift the same,l

' gaged and disengaged positions, a shiftable pedal lever control therefor, change speed gearing and means Acarried by said pedal lever control for shifting the gears of said change speed gearing embodying a pair of pedals mounted upon said lever and shiftable with relation thereto, a pair of shafts connected with the sliiftable gears of said change speed gearing to shift the same, a

grooved selector plate secured to each of said shafts, a shiftable selector finger engaging each of said selector plates and adapted to be shifted to selectively engage the grooves thereof, and means connecting said pedals and Asaid selector fingers whereby said selector lingers 'are\s'hiftedwhen the pedalsare oscillated, embodying an arm connected to each of saidpedals to be oscillated thereby when the pedals are shifted, means connecting. said arms and said selector fingers Where.

by-said fingers are shifted When the arms are oscillated and means engaging said selector fingers and preventing shifting thereof by said arms when'said selector fingers are engaged in a groove of said selector plate.

10.1In acontrol of the type described, a

.clutch embodying sections shiftable to engaged and disengaged positions,a shiftable pedal lever control therefor, change speed gearing and means carried by said pedal lever controlfor shifting the gears of said change speed gearing embodyinga pair'of pedals pivotally mounted upon said lever for images 'said selector fingers whereby said selector fingers are shifted When the pedals are oscillated and mean preventing the shifting of said selector finger when the clutch sections are engaged.

11. ln a control ofthe type described, a clutch embodying sections shiftable to engaged and disengaged positions, a shiftable pedal `lever` control therefor, change speed gearing and means carried by said pedal lever control for shifting the gears of said change speed gearing embodying a pair of pedals pivotally'mounted 'upon said lever for oscillation with relation thereto, a pair of shafts connected With'the shiftable-gears of, Said Chang@ Speed gearing to shift-the y same, a grooved selector plate secured to each orf-said shafts, a shiftable selector' finger engaging each of said s elector plates and adapted to loe shifted to selectively engage the grooves thereof, means connectong` said pedalsaiid said selectoninger's whereby said selector fingers are shifted when the pedals 'are' oscillated, means preventing the engagementA of said cliitchsections when the se lector finger is not properly lalined With the l said shafts, a shiftable 'selector finger enselected groove and means preventing shiftingof the'selector finger when engaged .Wlth

a groove of'said selector plate.

. l2.. ina' control of the type described, a

clutch embodying sections shiftable to en-f gaged and disengaged positionsga shiftable pedal lever control therefor, change speed gearing and means 4'carried by said pedal 'lever control for shifting the gears of said change 'speed gearing embodying a pair of pedals pivotally mountedyu'pon saidleverv for oscillation with relation thereto, a pair of shafts connected with the shiftable gears of' said ychange speed gea-'ring to shift the saine, ai grooved selector plate secured to each of said shafts, a shiftable selector finger engaging each of said selector plates and adapted to be shifted to. selectively/'engage thc-grooves thereof. means connecting said pedals and said selector fingers whereby said selector fingers are shifted when the pedals are oscillated, means preventing the shifting -of said selector finger when the clutch sections are engaged and means preventing the engagement of said clutch sections When the selector finger is not properly alined With the selected groove.'

i3. ln a control of the type described, a clutch embodying sections shiftable to engaged and disengaged positions, a shiftable pedallever .control therefor, -change sai-d shafts, a shift-able selector finger engaging each of said selector. plates and adapted tov be shifted to selectively engage the grooves thereof, means connecting said pedals and said selector fingers whereby said selector fingers are shifted when the pedals are oscillated, embodying an arm connected to each lof said pedals to be oscillated thereby when thev pedals are yshifted and means connecting said arms and said selector fin- .gers whereby said fingers are shifted when the arms are oscillated, ,and meanspreventing the shifting of said selector finger when the clutch 'sections are engaged.

Y la. ln a control of the type described, a clutchv embodying sections shiftable to en*- gag-ed and disengaged positions, a shiftable pedal lever control therefor, change speed gearing and means carried by said pedal lever control' for shifting the gears of said change speed gearing embodying a pair of pedals mounted upon said lever and shiftable with relation thereto, a pair of shafts connected with the shiftablegears ofv said change speed gearing to shift the same, a grooved selector plate secured to each of gaging each of said selector plates and adapted tobe shifted toy selectively engage the grooves'thereof, means connecting said pedals and-said selector fingers whereby said selector fingers are shifted when the pedals are 'oscillated, embodying an arm connected to each of said pedals to be oscil' lated thereby lWhen the pedals are shifted, means 'connecting said arms and said selector fingers whereby said fingers are shifted when thearms are oscillated, and means preventingI thel engagement of said clutch sections when the' selector finger is not properly alined with the selected groove and means preventing shifting of said selector finger when engaged with a groove of said selector plate.

llt?

i5. lna vcontrol of the type describedal i ablev with relation thereto, a pair of shafts connected With the shiftable gears ofvsaid `change speed gearing to shift the saine, a

grpoved selector plate secured to each of said shafts, a shiftable selector finger engaging -each of said lselector plates and vadapted to be shifted to selectively engage the grooves thereof, means connecting said pedals and said selector fingers' whereby said selector fingers are shifted when the pedals are oscillated, embodying an arm connected to each of said pedals to be oscillated thereby when the pedals are shifted and means connecting said arms and said selector fingers whereby said fingers are shifted when the arms are oscillated, means' preventing the shifting of said selectonfinger when the clutch sections are engagedand means preventing the engagement of said clutch sections when the selector finger is not properly alined withthe selector groove.

16. In a dev-ice of the type described, a drive shaft, a driven shaft,l a clutch embodying shiftable portions adapted to be brought into engagement to connect said shafts, a power transmission shaft, change speed gearing connecting the power transmission shaft and 'said driven shaft, an oscillatory control lfor bringing the shiftable sections of said clutch into engagement, means connected with said control for shifting'the gears of said change speed gearing,

and means for preventing engagement of the sections of said clutch when saidgear shifting means` is not properly'alined to shift said gears.v

17. In a device 0f the. type described, a drive shaft, a. driven shaft, a clutch embodying shiftable portions adapted to be brought into engagement to connect said shafts, a power transmission shaft, change speed gearingl connecting the power transmission shaft and said driven shaft, an oscillatory control for bringing the shiftable sections of said clutch into engagement, gear selecting mechanism, means connected with said control for operatlng the gear-shifting.

mechanism, means preventing shifting of the gears of said change. speed gearing when said clutch sections are brought into engagement by said clutch control and means preventing shifting of said gears while .the clutch sections are disengaged but permitting of a selection of gears to be shifted, the shifting ofsaid control during the return of the clutch sections to engaged position shift-l ing the gears selected to. engaged position.

18. In a. device of the type described` a drive shaft. a driven shaft, a clutch embodying shiftable portionsadapted to be brougli't into engagement to c'onnect said'shafts, a power transmission shaft.` V`change speed -ge'arlng connecting` the power transmission` shaft and sald driven shaft, an oscillator)v control for bringing the shiftable sections of" said clutch into engagement, means connected with said control for shifting .the

gears of said change s-peed gearing, means preventing shifting of the gears of said change speed gearing when said clutch sections are brought into engagement by said clutch control' and means preventing the engagement of said clutch when said gear shifting means is notI properly alined to shift said gears.

19. In yselector mechanism for change speed gearing 'embodying shiftablel gears, a

shaft, means'connecting said shaft. and the shiftable gears of said gearing whereby the gears may be shifted, a plat'e secured to said shaft and embodyingspaced grooves, said plate being provided with an overhanging portion, an arm'mounted' for oscillation, a member slidably mounted in said arm and -provided with a portion adapted to interchan,f ;eablyl engage in the grooves of said plate, a latching-foot carried by said arm and adapted to"engage in said'plate, the groove engaging portion of said slidable ymember being .heldagainst disengagement Afrom said grooves when said latching foot y is in disengaged position, means for. shifting said slidably mounted member and means holding said member against movement with relation to said arm when the selector finger thereof is in engagement with any of said grooves.

. 20. In selector mechanism for change speed gearing embodying shiftable gears, a selector plate provided with grooves, an arm mounted for oscillation, a member slid- 4ably mounted therein and provided with a able cam.` means connecting said member and said cam whereby' said member is shifted by said cam and'xneans normally holding said cam in position to aline said selector finger with the neutral groove.- of said selector plate, means preventing shifting of said member with relation to said arm whenA the selector finger of said member is entered in one of said grooves.

, 22. In .a control of the type described, a clutch-l embodying sections shiftable to en-` gaged and disengaged positions. a lever control therefor` change .speed gearing, selective mechanism for said change speed gearing embodying a groove-d selector plate, a shiftable selector finger, means'ca-rried by said lever control for shifting said selector finger to aline the same with the grooves of said selector plate and means preventing'A movement of the`selectorfinger by said control carried means when said finger 4is engaged in a groove of the selector' plate.

23. In av control .of the type described, a clutch embodying sections shiftable to engaged and disengaged positions, a lever control therefor, change speed gearing, selective mechanism for said change speed gearing embodying a grooved selector plate, a shift-y able selector finger, means carried by said lever control for shifting said selector finger to aline the-same with the grooves of'said selector plate, said last named means being operable when the clutch sections are disengaged and inoperable when the clutch sec- -tions are engaged and means preventing movement or' the selector finoer b said control carriedmeans 'when said finger is engaged ina groove ofL the selector plate.

'24. ln a control of the type described, a

, clutch embodying sections shifta'ble to engaged and disengaged positions, a lever control therefor, change speed gearing selective mechanism for said change speed gearing embodying a grooved selector plate, a shiftable selector finger, means carried by said lever control for shifting said selector finger to aline the same with theA groove-s of said selector plate, said last named means being operable when the clutch sections are disengaged and inoperable when the clutch sections areengaged, means preventingmovement of the selector finger by said control carriedmans when saidfinger is engaged in a. groove of the selector plate, and means preventing the engage-ment of`said. clutch sections by said lever control when said selector finger is not properlysaiined with one ofthe grooves of said selector plate.

25. ln a control of the typerlescri'bed, a

clutch, a shift-able pedal lever control therefor, change speed gearing embodying shift-` able gears, pedals pivotally mounted on said control lever, and means lonnecting said pivotal pedals and said shiftable gears for shifting said gears and means preventing shifting of said pivotal pedals When` the clutch sections are engaged.

26. ln a control or" the type described, a clutch, a. bod-ily shiftable operating member therefor, change speed gearing selector mechanism for said change-speed gearing, and shiftable means carried by said operating member for operating said selector mechanism Whenfsaid operating means is shift-ed, said means being shif'table when the clutch sections are disengaged `and inoperable ivlien the clutch sections-'are engaged.

27. ln a control ofthe type described, a clutch, change speedv gearing, selector mechanism for saidchange speed gea-ring, a plurality of rotatablyy mounted concentric members one of which forms an operating member for said clutch, means connecting the remaining members and said selector mechanism whereby said selector mechanism 1s operated When the members are rotated, and -common means for independently rotating said members.

28. ln a. control of the type described. a Clutch, change speed gearing, selector mechanism for said change speed gearing, a plurality o-fvrotatably mounted concentric members one of which Jforms an operating memberfor said clutch, means connecting'the remaining members and said. selector mechanism whereby said selector mechanism-is operated when the members are rotated, a lever secured to the clutch opera-ting member for rotating the same and means mounted upon said lever for rotating the remaining concentric members.

29'. ln a control of' the type described, as .a subcombination, a shiftable shaft, a

'grooved selector plate secured to said shaft,

a member mounted for oscillation, a stationary grooved plate, a selector finger lcarried 'by said member and adapted to' simultaneas a subcombination, a shiftable shaft, a-

grooved selector plate secured to said shaft,

a member mounted for oscillation, a station- 'ary grooved plate, the grooves of said stationary plat'e being arcuately curved with the center of oscillation of said member as a center, a selector finger carried by said member and! adapted to simultaneously engage grooves in each of said plates and means for shifting said selector finger longitudinally of said oscillatory member.

3.1. ln a control of the type described, as a subcombination, a shiftable selector plate having grooves formed therein, an arm mounted for oscillation, a'selector finger carried by said arm and adapted to selectively engage the grooves of said platesaid selector finger being shiftable on said arm for alinement With said grooves, and means for holding the linger against shifting with relation to said arm when the finger is engaged'in any of said grooves.

32. ln a control ofthe. type described, as a subcombination, a shiftable selector plate having grooves formed therein, an arm mounted for oscillation, a selector finger carried by said-arm and adapted to selectively engage the grooves of said plate, said selector finger being shitable onsaid arm 4for ali'nement With'saidgrooves, and means icio viosa carried by said arm and adapted to selectively engage the grooves of' said plate, said selector finger being shiftable on said arm for allinement with said grooves, means lfor holding said plate against shifting 'when said selector finger is out of engagement with said grooves, and means preventing oscillation of said .arm when said finger is not properly alined with one of said grooves.

34, .In a control of the type described, as

a snbcombination, a shiftable selector plate gaged in any of said grooves, `and portions formed on said arm and engaging With )ortions of said plate foi' holding said p ate. `against ,shifting when said-,selector finger is out of enga-gement with sai-d grooves.`

35; In avcontrol of the type described, a clutch, -a variable speed transmission mech7 anism, a selector mechanism, operating mechanism f therefor, means carrying the operatingmechanismfor said selector mechanism and-disconnecting the clutch, While the change of speeds of the transmission is effected, said operating mechanism being inoperative to eect aselection when the clutch is connected.

In testimony whereof I hereunto affix my signature. f

WATSON PURCELL. 

